the esx-8md is an expansion module for the es-4, es-40 or es-5, adding eight midi/dinsync outputs from one expansion header.

the es-4/5 controller software (part of expert sleepers silent way) allows the esx-8md outputs to be used for midi output* (note - not just midi clock output, but as an actual midi port, capable of sending any
midi messages). since these outputs are driven from an audio connection, they have sample-accurate timing, which no usb midi interface can claim.

the silent way sync plug-in would typically be used to send dinsync to the esx-8md, though any software capable of addressing the es-4/5's expansion headers, via silent way or the max/msp external, can send
clock pulses to it.

* note - the midi out feature is only officially supported at sample rates of 48khz and above, though some users report success with specific hardware when running at 44.1khz.

the front panel is drilled for both doepfer and analogue systems mounting holes (using a 'slot' rather than a single round hole). the power connector is a doepfer standard 10 way idc, with -12v furthest from the
top of the board.